Investigations on Quench Recovery Characteristics of High-Temperature Superconducting Coated Conductors for Superconducting Fault Current Limiters

Abstract

Superconducting fault current limiters (SFCLs) are attracting increasing attention due to their potential for use in modern smart grids or micro grids. Thanks to the unique non-linear properties of high-temperature-superconducting (HTS) tapes, an SFCL is invisible to the grid with faster response compared to traditional fault current limiters. The quench recovery characteristic of an HTS tape is fundamental for the design of an SFCL. In this work, the quench recovery time of an HTS tape was measured for fault currents of different magnitudes and durations. A global heat transfer model was developed to describe the quench recovery characteristic and compared with experiments to validate its effectiveness. Based on the model, the influence of tape properties on the quench recovery time was discussed, and a safe margin for the impact energy was proposed.

Optimization of Kiloampere Peltier Current Lead Using Orthogonal Experimental Design Method

“…Recently, great progress has been made in the development of high-temperature superconducting (HTS) applications. Many demonstrative projects have been tested in grids, such as HTS cables [1][2][3][4][5][6][7], superconducting fault current limiters [8][9][10][11], and superconducting maglevs [12][13][14][15]. Concept design and demo tests of superconducting electrical machines have proved the potential of HTS electrical machines in electrical aircraft and wind turbines [16][17][18][19][20][21][22][23].…”